Results 231 to 240 of about 155,145 (310)

Valuing South American sea lions through ecotourism: a case study from a protected natural area in Argentine Patagonia. [PDF]

open access: yesSci Rep
Heredia FM   +5 more
europepmc   +1 more source

A Conceptual Framework and Methods for Studying the Connectivity of Fishes

open access: yesFish and Fisheries, Volume 27, Issue 2, Page 342-369, March 2026.
ABSTRACT Connectivity is a multifaceted concept that has important implications for the management and conservation of marine and freshwater fishes. We developed a conceptual framework that encompasses multiple, interrelated categories of connectedness, including landscape (e.g., structural, functional) connectivity and ecological (e.g., trophic ...
Jordanna N. Bergman   +18 more
wiley   +1 more source

Global Patterns and Gaps in Research on Salinity Tolerance of Inland Fishes

open access: yesFish and Fisheries, Volume 27, Issue 2, Page 400-411, March 2026.
ABSTRACT Freshwater salinization is an emerging threat impacting approximately one‐third of the world's freshwater bodies. However, the salinity tolerance of many inland fishes remains understudied, despite being a crucial factor in determining species distributions and fitness.
Carlos Cano‐Barbacil   +4 more
wiley   +1 more source

The Primacy of Processes and the Causes of the Russo‐Ukrainian War: A Rejoinder to ‘Patrimonial Imperialism’

open access: yesJournal for the Theory of Social Behaviour, Volume 56, Issue 1, March 2026.
ABSTRACT Pierzynski and Joseph explain the Russo‐Ukrainian war through systemic and individual‐level accounts but argue these are incomplete without addressing Russia's internal structure, which they term ‘patrimonial imperialism’. While their taxonomy mirrors the traditional IR ‘levels of analysis’, I suggest it obscures relational and historical ...
Heikki Patomäki
wiley   +1 more source

The American Black Bear (Ursus americanus) as an Apex Predator: Investigating the Ecological Role of the World's Most Abundant Large Carnivore

open access: yesMammal Review, Volume 56, Issue 1, March 2026.
Black bears as apex predators. American black bears can (1) produce top‐down effects on ungulates equal to or exceeding those of typical apex predators and (2) modify the spatiotemporal behaviour of other carnivores, including pumas and coyotes. We argue that the term ‘apex predator’ is highly context dependent and not a species‐wide status.
John M. Nettles   +10 more
wiley   +1 more source

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